It's interesting about the 64 bit thing. When I was in high school and working on Apple ]['s, we heard about 16 bit processors, which everyone was very excited about. 32 bit processors came on not too long after that, but it was years before 64 bits started to come on. And the main advantage of 64 bit processors is the larger memory space access! There are speciality processors that do much longer words/vectors, but no one has said we need a 128 bit processor.
The core thing may be similar - the leap from 1 to 2 is great, 2 to 4 is great, but there's not much to be gain performance wise after that.
A direct comparison of thermodynamic efficiency to solar cell efficiency is not immediately relevant, as you are tapping into different sources of power.
In order to get power from heat, you correctly point out that you need a cold reservoir. Now, for this working fluid, the reservoir needs to be below 58F. The hot reservoir is unlimited (if the air cools down enough, we don't need the AC anymore). So our available energy to run our AC is limited by the cold reservoir.
You could compute, for a given size of cold reservoir, how much cooling you'd get. So what's your cold reservoir? Here's where TFA (and website) are a little hazy. If you have a large reservoir at 58F, why wouldn't you just use that to cool the air directly? So even if you had a large efficiency, I don't think this would make much sense!
I'm a new netflix user, and I find we do watch within a few days of coming in. So far, I like it a lot.
There is one disk which we've had since we subscribed though, and not from lack of viewing - my kid watches it over and over again. At what point do I buy her a copy?
Panic attacks are serious business. Test nervousness is one thing, and if that's the beginning and end of the problem I'm sure you will find a way to cope with it. Use the "special consideration" - I personally think all college level exams should be administered without time limits.
However, if you had a heart pounding, sweating, feeling like you might die type of panic attack, I'd strongly suggest you talk to a doctor or psychiatrist about it. It's a serious disorder, and a treatable one, as long as you recognize and do something about it. It can be pretty debilitating if you don't, and it can have an onset in early adulthood.
Either way, good luck. Don't let it get in the way of enjoying what you're learning.
This is a very interesting development, both from the practical promise and just 'cause it's cool. However, as a python programmer myself, it's not yet in a usable form. Much of the efficiency of programming in python is the standard libraries (in particular Tkinter for user interfaces), and the non-standard libraries (for example, the serial port library). This project does not yet support these.
Among python programmers, I'm curious - how many use psyco (another python performance enhancement tool) for their projects? I fiddled with it a while ago (it didn't work because of a C module that it didn't like), but never had a compelling reason to go back to it. Performance optimization has never been important enough for my applications to merit the effort.
You know, I'm really annoyed with the comment I just posted. So much of this debate is about trotting out "experts" and undermining people's credibility and their vested interests. The question is how do we bring science into our policies? The rest of the world seems to think that there is good reason to link CO2 to global warming (hence Kyoto) - how is science and policy treated in other places? Has it become as poisoned with cynicism as it has in the U.S.?
The article was written by someone from the "High Park Group". A google search gives this description:
Mr. Egan is president of the High Park Group, a public policy consulting firm that
focuses largely on energy issues out of its offices in Toronto and Ottawa. He is
retained by the Canadian Electricity Association on a range of issues, including US
advocacy (monitoring the US Congress and the Administration on issues of interest
to the Canadian electricity industry).
So I'd take his assesment of the scientific consensus with a grain of salt.
You would however be only able to use a fraction of the charge actually stored on the capacitor.
Actually, they make very efficient DC to DC converters that can take a variable input voltage and produce a steady output voltage. For example, this baby takes 1.8V to 5.5V input (I picked that one out at random, there are TONS of these things). So you could use 65% of the stored energy on the capacitor with one of these things, and there are probably better ones out there.
I don't know if they run in the same fab. I do remember being told (when I was in the IC business) that flash is what you run first when you are bringing a new fab on line. Another reason it makes a good test product is that it provides an excellent test of the quality of the gate oxide - any defects can be detected by looking for charge leaking off the floating gate.
Perhaps someone a little closer to the business would weigh in on this one?
Intel will always make flash memory. Flash provides an ideal platform for verifying a fab process and/or facility. The reason is that it consists of huge arrays of identical transistors in a grid, with a relatively small amount of additional circuitry. This makes it very easy to find and diagnose bad ones. It may not be a big business for them, and they may always lose money on it, but it remains an important part of keeping a handle on the process.
A bad transistor (or contact or whatever) on a microprocessor can be very difficult to track down. Pass/fail testing is pretty good on them, but actually identifying the source of the failure can be really tricky and time consuming.
But it is end of lifed, and no longer supported. Some of our code was VB6 based, and it needed to be redone in.NET to run on computers with newer versions of Windows. It was a lot of effort for no benefit on our side.
The suggestion of interbreeding was met with skepticism by paleontologists, who said they had trouble imagining a successful breeding between early human ancestors, which walked upright, and the chimpanzee ancestors, which walked on all fours
I have no problem imagining how this would work - paleontologists must have very boring sex lives.
I've also used the BofA site with Firefox for some time, and have had a good experience with it. One thing I have been wishing for (but having gotten around to trying to implement) is a way to download all my check images every month. I need them for tax stuff and insurance claims, but they only let you get at them for six months. After which they charge you several bucks for a copy, which I find annoying because I know it costs them nearly nothing to produce it!
My knowledge of vim...
on
Vim 7 Released
·
· Score: 3, Informative
I've been using vi or vim in some context for over ten years. Here's what I know about it:
Right slash to search
Period to repeat a command
I to insert at the beginning of the line, i to insert at the cursor
:w to write,:q to quit,:wq to do both,:q! to quit without saving
:23 to go to line 23
yy to copy a line, 5yy to copy 5 lines
dd to delete a line
cw to change a word
:syntax on for syntax coloring
ma and y'a or ma and d'a to delete or copy a block
p to paste
u for undo
x to delete a character
% to find a closing bracket or parenthesis
That's really all I've ever learned or needed. It's a pretty small subset (and getting smaller with each release), but I get by on it!
I used to work in the military simulation business about six years ago. SGI used to be the dominant player for real time graphics for the visuals for things like flight simulators. Even then, their fortunes were declining. The fundemental problem was that the problem in military simulation was not getting harder, and the commodity hardware was getting to the level of being able to handle it. People now longer had to pay the premium for the SGI equipment.
I don't think they stopped doing what they were doing - they just never came up with a strategy to handle the new reality.
In a truly free market, people without the money to pay for good health care would die.
This is one of the fundamental problems with the free market model for health care. Remember Dicken's "A Christmas Carol", when tiny Tim was going to die because they couldn't afford a doctor? That's true free market health care.
The question is whether human life is intrinsicaly valuable, and our economic systems are there to best support and enrich life, or whether the economic system is the most valuable, and human life is something that needs to be fit into it.
It's not a trivial question. There have been many societies throughout history where human lives where less valuable than the material needs of others. (Again, see Dickens, American slavery, the roman empire, etc.). It's an actual choice. And most Americans would come down on the side of the value of human life.
Slashdot Mirror
The core thing may be similar - the leap from 1 to 2 is great, 2 to 4 is great, but there's not much to be gain performance wise after that.
In order to get power from heat, you correctly point out that you need a cold reservoir. Now, for this working fluid, the reservoir needs to be below 58F. The hot reservoir is unlimited (if the air cools down enough, we don't need the AC anymore). So our available energy to run our AC is limited by the cold reservoir.
You could compute, for a given size of cold reservoir, how much cooling you'd get. So what's your cold reservoir? Here's where TFA (and website) are a little hazy. If you have a large reservoir at 58F, why wouldn't you just use that to cool the air directly? So even if you had a large efficiency, I don't think this would make much sense!
Yeah, just like the little clicks and whatnot a digital camera maks.
I'm a new netflix user, and I find we do watch within a few days of coming in. So far, I like it a lot. There is one disk which we've had since we subscribed though, and not from lack of viewing - my kid watches it over and over again. At what point do I buy her a copy?
Negative temperatures exist...
I live in DC. Fucked again.
However, if you had a heart pounding, sweating, feeling like you might die type of panic attack, I'd strongly suggest you talk to a doctor or psychiatrist about it. It's a serious disorder, and a treatable one, as long as you recognize and do something about it. It can be pretty debilitating if you don't, and it can have an onset in early adulthood.
Either way, good luck. Don't let it get in the way of enjoying what you're learning.
I believe, however, that the magnetron in a microwave is made in china, and costs $6, so it might be a while before it's replace with solid state.
Among python programmers, I'm curious - how many use psyco (another python performance enhancement tool) for their projects? I fiddled with it a while ago (it didn't work because of a C module that it didn't like), but never had a compelling reason to go back to it. Performance optimization has never been important enough for my applications to merit the effort.
Ok, done talking to myself now.
You know, I'm really annoyed with the comment I just posted. So much of this debate is about trotting out "experts" and undermining people's credibility and their vested interests. The question is how do we bring science into our policies? The rest of the world seems to think that there is good reason to link CO2 to global warming (hence Kyoto) - how is science and policy treated in other places? Has it become as poisoned with cynicism as it has in the U.S.?
Mr. Egan is president of the High Park Group, a public policy consulting firm that focuses largely on energy issues out of its offices in Toronto and Ottawa. He is retained by the Canadian Electricity Association on a range of issues, including US advocacy (monitoring the US Congress and the Administration on issues of interest to the Canadian electricity industry).
So I'd take his assesment of the scientific consensus with a grain of salt.
Here's a better one - 0.7 to 5.5V input. This would allow use of 87% of the battery power.
Actually, they make very efficient DC to DC converters that can take a variable input voltage and produce a steady output voltage. For example, this baby takes 1.8V to 5.5V input (I picked that one out at random, there are TONS of these things). So you could use 65% of the stored energy on the capacitor with one of these things, and there are probably better ones out there.
I don't know if they run in the same fab. I do remember being told (when I was in the IC business) that flash is what you run first when you are bringing a new fab on line. Another reason it makes a good test product is that it provides an excellent test of the quality of the gate oxide - any defects can be detected by looking for charge leaking off the floating gate.
Perhaps someone a little closer to the business would weigh in on this one?
A bad transistor (or contact or whatever) on a microprocessor can be very difficult to track down. Pass/fail testing is pretty good on them, but actually identifying the source of the failure can be really tricky and time consuming.
But it is end of lifed, and no longer supported. Some of our code was VB6 based, and it needed to be redone in .NET to run on computers with newer versions of Windows. It was a lot of effort for no benefit on our side.
Try a little Bertrand Russel. The man's a genius.
I have no problem imagining how this would work - paleontologists must have very boring sex lives.
blah blah blah blah Ginger blah blah blah blah
I've also used the BofA site with Firefox for some time, and have had a good experience with it. One thing I have been wishing for (but having gotten around to trying to implement) is a way to download all my check images every month. I need them for tax stuff and insurance claims, but they only let you get at them for six months. After which they charge you several bucks for a copy, which I find annoying because I know it costs them nearly nothing to produce it!
Right slash to search
Period to repeat a command
I to insert at the beginning of the line, i to insert at the cursor
yy to copy a line, 5yy to copy 5 lines
dd to delete a line
cw to change a word
ma and y'a or ma and d'a to delete or copy a block
p to paste
u for undo
x to delete a character
% to find a closing bracket or parenthesis
That's really all I've ever learned or needed. It's a pretty small subset (and getting smaller with each release), but I get by on it!
I don't think they stopped doing what they were doing - they just never came up with a strategy to handle the new reality.
Hey great link! Thanks!
This is one of the fundamental problems with the free market model for health care. Remember Dicken's "A Christmas Carol", when tiny Tim was going to die because they couldn't afford a doctor? That's true free market health care.
The question is whether human life is intrinsicaly valuable, and our economic systems are there to best support and enrich life, or whether the economic system is the most valuable, and human life is something that needs to be fit into it.
It's not a trivial question. There have been many societies throughout history where human lives where less valuable than the material needs of others. (Again, see Dickens, American slavery, the roman empire, etc.). It's an actual choice. And most Americans would come down on the side of the value of human life.